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/*
*
* Copyright (C) 2007 Advanced Micro Devices
*
*/
#define ASSEMBLY 1
#include <stdint.h>
#include <device/pci_def.h>
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
#include <arch/hlt.h>
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "ram/ramtest.c"
#include "cpu/x86/bist.h"
#include "cpu/x86/msr.h"
#include <cpu/amd/lxdef.h>
#include <cpu/amd/geode_post_code.h>
#include "southbridge/amd/cs5536/cs5536.h"
#define POST_CODE(x) outb(x, 0x80)
#include "southbridge/amd/cs5536/cs5536_early_smbus.c"
#include "southbridge/amd/cs5536/cs5536_early_setup.c"
static inline int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
#define ManualConf 0 /* Do automatic strapped PLL config */
#define PLLMSRhi 0x00001490 /* manual settings for the PLL */
#define PLLMSRlo 0x02000030
#define DIMM0 0xA0
#define DIMM1 0xA2
#include "northbridge/amd/lx/raminit.h"
#include "northbridge/amd/lx/pll_reset.c"
#include "northbridge/amd/lx/raminit.c"
#include "sdram/generic_sdram.c"
#include "cpu/amd/model_lx/cpureginit.c"
#include "cpu/amd/model_lx/syspreinit.c"
static void msr_init(void)
{
msr_t msr;
/* Setup access to the cache for under 1MB. */
msr.hi = 0x24fffc02;
msr.lo = 0x1000A000; /* 0-A0000 write back */
wrmsr(CPU_RCONF_DEFAULT, msr);
msr.hi = 0x0; /* write back */
msr.lo = 0x0;
wrmsr(CPU_RCONF_A0_BF, msr);
wrmsr(CPU_RCONF_C0_DF, msr);
wrmsr(CPU_RCONF_E0_FF, msr);
/* Setup access to the cache for under 640K. Note MC not setup yet. */
msr.hi = 0x20000000;
msr.lo = 0xfff80;
wrmsr(MSR_GLIU0 + 0x20, msr);
msr.hi = 0x20000000;
msr.lo = 0x80fffe0;
wrmsr(MSR_GLIU0 + 0x21, msr);
msr.hi = 0x20000000;
msr.lo = 0xfff80;
wrmsr(MSR_GLIU1 + 0x20, msr);
msr.hi = 0x20000000;
msr.lo = 0x80fffe0;
wrmsr(MSR_GLIU1 + 0x21, msr);
}
static void mb_gpio_init(void)
{
/* Early mainboard specific GPIO setup */
}
void cache_as_ram_main(void)
{
POST_CODE(0x01);
static const struct mem_controller memctrl [] = {
{.channel0 = {(0xa<<3)|0, (0xa<<3)|1}}
};
SystemPreInit();
msr_init();
cs5536_early_setup();
/* NOTE: must do this AFTER the early_setup!
* it is counting on some early MSR setup
* for cs5536
*/
/* cs5536_disable_internal_uart disable them for now, set them up later...*/
cs5536_setup_onchipuart(); /* if debug. real setup done in chipset init via config.lb */
mb_gpio_init();
uart_init();
console_init();
pll_reset(ManualConf);
cpuRegInit();
sdram_initialize(1, memctrl);
/* Check all of memory */
/*ram_check(0x00000000, 640*1024);*/
/* Memory is setup. Return to cache_as_ram.inc and continue to boot */
return;
}
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